350 MR. E. A. SMITH ON NEW 



mere plain band or constriction, and does not bulge laterally as 

 in tbe species referred to. The peristome also is less produced 

 on tlie upper outer margin. 



22. DiPLOMMATINA BARITENSIS. (PI. XXY. fig. 22.) 



Testa dextrorsa, imperforata, subpellucida, albida, ad apicem rufescens ; 

 anfractus 7, tenuissime lamellati, perconvexi, sutura profunda discreti, 

 primi quinque lente accrescentes, penultimus maximus, subito inflatus, 

 ultimo latior ; apertura subcirculavis, latere columeilari rectiusculo, dente 

 minuto submediano instructo ; peristoma duplex, margine externo tenui 

 utrinque angulatim producto. 



Longit. 2| millim., diam. 1^. Apertura cum perist. 1| lata. 



Sah. Barit Mountain, N.W. Borneo. 



The spire of this species abov^e the penultimate whorl is much 

 narrowed and obtuse at the tip ; the penultimate is considerably 

 bulged out and has a slightly distorted appearance when viewed 

 both in front and behind. It differs from D. Aldrichi, G-odwin- 

 Austen, in form and in the character of the lip of the aperture. _ 



23. Aeinia boeneensis. (Pi. XXY. fig. 28.) 



Testa mimxta, pupiformis, umbilicata, sordide albida, ad apicem rufes- 

 cens ; anfractus 5, sutura profunda sejuncti, convexi, liris numerosis ten- 

 uibus obliquis ornati, ultimas latitudine penultimum subsequans, antice 

 paulo ascendens ; apertura circularis, parva; peristoma duplex, ex|mnsum, 

 album, margine externo superne utrinque interrupto, baud continue, 

 lamelliformi. 



Longit. If millim., diam. 1. Apertura cum perist. f lata. 



Sah. Gomanton, North Borneo. 



The well-expanded inner margin of the peristome has a con- 

 spicuous lamella outside it, forming, as it were, a double lip. 

 The fine oblic[ue lirse become gradually finer as the apex is 

 approached. 



24. Aeinia similts. (PI. XXV. fig. 24.) 



Testa minuta, breviter pupiformis, umbilicata, sordide albida, apicem 

 versus rufescens ; anfractus 4, convexi, sutura profunda discreti, lii-is ten- 

 uibus obliquis, primo confertis deinde remotioribus, ornati, ultimus 

 latitudine penultimum sequans ; apertura subcircularis ; peristoma duplex, 

 mediocriter validum, marginibus callo tenui lato junctis. 



Longit. \h, millim., diam fere 1. Apertura cum perist. § lata. 



Hah. Barit Mountain, N.W. Borneo. 



This species is a little smaller than A. horneensis, consists of 



